王先铁, 马尤苏夫, 苏明周. 方钢管混凝土框架-薄钢板剪力墙边框柱刚度研究[J]. 工程力学, 2015, 32(6): 146-154,170. DOI: 10.6052/j.issn.1000-4750.2013.12.1162
引用本文: 王先铁, 马尤苏夫, 苏明周. 方钢管混凝土框架-薄钢板剪力墙边框柱刚度研究[J]. 工程力学, 2015, 32(6): 146-154,170. DOI: 10.6052/j.issn.1000-4750.2013.12.1162
WANG Xian-tie, MA You-su-fu, SU Ming-zhou. RESEARCH ON BOUNDARY COLUMNS STIFFNESS OF CONCRETE-FILLED SQUARE STEEL TUBULAR FRAME-THIN STEEL PLATE SHEAR WALLS[J]. Engineering Mechanics, 2015, 32(6): 146-154,170. DOI: 10.6052/j.issn.1000-4750.2013.12.1162
Citation: WANG Xian-tie, MA You-su-fu, SU Ming-zhou. RESEARCH ON BOUNDARY COLUMNS STIFFNESS OF CONCRETE-FILLED SQUARE STEEL TUBULAR FRAME-THIN STEEL PLATE SHEAR WALLS[J]. Engineering Mechanics, 2015, 32(6): 146-154,170. DOI: 10.6052/j.issn.1000-4750.2013.12.1162

方钢管混凝土框架-薄钢板剪力墙边框柱刚度研究

RESEARCH ON BOUNDARY COLUMNS STIFFNESS OF CONCRETE-FILLED SQUARE STEEL TUBULAR FRAME-THIN STEEL PLATE SHEAR WALLS

  • 摘要: 钢框架-薄钢板剪力墙竖向边缘构件刚度限值源于经典薄腹梁理论,其仅适用于钢框架,对于方钢管混凝土框架-薄钢板剪力墙,该刚度限值公式不再适用。该文基于薄腹梁理论,提出了方钢管混凝土竖向边缘构件的刚度限值计算公式。构建了不同宽高比和宽厚比分析模型,进行了非线性数值分析,研究了不同柱刚度对方钢管混凝土框架-薄钢板剪力墙力学性能、边框变形和破坏机制的影响。结果表明,按照该文公式设计的方钢管混凝土竖向边缘构件可充分发挥薄钢板剪力墙的结构性能,实现理想的破坏机制。

     

    Abstract: The limit value of the stiffness of vertical boundary elements (VBE) in steel frame-thin steel plate shear walls (SPSWs) is derived based on the thin web plate girder theory. The formula works only for the SPSWs with steel frame, but not for the one with concrete-filled square steel tubular (CFST) frame. The formula for the limit value of stiffness of the vertical boundary element of CFST is put forward based on the thin web plate girder theory. The finite element models are established with different aspect ratios and slenderness ratios, and the nonlinear numerical analysis is conducted in order to study the influence of VBE stiffness on the mechanical behavior of CFST frame-thin SPSWs, the deformation of VBE and the failure mechanism. The analysis results show that the CFST vertical boundary elements which are designed according to the proposed formula can fully develop the structural behavior of the SPSWs, and achieve the expected failure mechanism.

     

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